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Randomized Controlled Trial
. 2024 Jan 16;13(2):e031234.
doi: 10.1161/JAHA.123.031234. Epub 2024 Jan 16.

A Physical Activity and Diet Just-in-Time Adaptive Intervention to Reduce Blood Pressure: The myBPmyLife Study Rationale and Design

Jessica R Golbus  1   2 , V Swetha E Jeganathan  1 , Rachel Stevens  1 , Weena Ekechukwu  1 , Zahera Farhan  1 , Rocio Contreras  1 , Nikhila Rao  1 , Brad Trumpower  1 , Tanima Basu  1 , Evan Luff  1 , Lesli E Skolarus  3 , Mark W Newman  4 , Brahmajee K Nallamothu  1   2   5 , Michael P Dorsch  6
Affiliations
Randomized Controlled Trial

A Physical Activity and Diet Just-in-Time Adaptive Intervention to Reduce Blood Pressure: The myBPmyLife Study Rationale and Design

Jessica R Golbus et al. J Am Heart Assoc. .

Abstract

Background: Smartphone applications and wearable devices are promising mobile health interventions for hypertension self-management. However, most mobile health interventions fail to use contextual data, potentially diminishing their impact. The myBPmyLife Study is a just-in-time adaptive intervention designed to promote personalized self-management for patients with hypertension.

Methods and results: The study is a 6-month prospective, randomized-controlled, remotely administered trial. Participants were recruited from the University of Michigan Health in Ann Arbor, Michigan or the Hamilton Community Health Network, a federally qualified health center network in Flint, Michigan. Participants were randomized to a mobile application with a just-in-time adaptive intervention promoting physical activity and lower-sodium food choices as well as weekly goal setting or usual care. The mobile study application encourages goal attainment through a central visualization displaying participants' progress toward their goals for physical activity and lower-sodium food choices. Participants in both groups are followed for up for 6 months with a primary end point of change in systolic blood pressure. Exploratory analyses will examine the impact of notifications on step count and self-reported lower-sodium food choices. The study launched on December 9, 2021, with 484 participants enrolled as of March 31, 2023. Enrollment of participants was completed on July 3, 2023. After 6 months of follow-up, it is expected that results will be available in the spring of 2024.

Conclusions: The myBPmyLife study is an innovative mobile health trial designed to evaluate the effects of a just-in-time adaptive intervention focused on improving physical activity and dietary sodium intake on blood pressure in diverse patients with hypertension.

Registration: URL: https://www.clinicaltrials.gov; Unique identifier: NCT05154929.

Keywords: blood pressure; cardiovascular disease; health disparities; hypertension; mobile health.

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Figures

Figure 1
Figure 1. Virtual consent and enrollment strategy in the myBPmyLife study.
BP indicates blood pressure; and EMR, electronic medical record.
Figure 2
Figure 2. Images of the myDataHelps application configured for myBPmyLife intervention participants.
A, Home dashboard. Participants can track progress toward goal achievement, search for lower‐sodium food options, and report their food choices. B, Salt dashboard. Participants can track their lower‐sodium food selections each day in addition to searching for lower‐sodium foods, reporting their selections, and reviewing recent dietary notifications. C, Steps dashboard. The Fitbit Versa 2 tracks participants' step counts. Participants can also review recent physical activity notifications. D, Blood pressure (BP) dashboard. Participants can measure their BPs and monitor their BP trends. E, Resources dashboard. This page shows hyperlinks to help participants better navigate and use the mobile application. Participants can use this page to restore account connectivity, access help guides, and contact the study team.
See this image and copyright information in PMC

References

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